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For example, in the header file example.h, I wrote:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
And in the source file example.c, I wrote:
#include "example.h`
Do I still need to explicitly wrote these lines if I need functions of these libararies?
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
Thanks!
No.
Keep in mind that includes works like some kind of text substitution, as it’s done by the preprocessor.
When you write, on some file:
It’s just like that line will be replaced with the actual content of the header file.